title: O-arm-guided balloon kyphoplasty: prospective single-center case series of 54 consecutive patients.
abstract: BACKGROUND
  Balloon kyphoplasty is widely used to treat vertebral compression fractures. Procedure outcome and safety are directly linked to precise radiological imaging requiring 1 or 2 C arms to allow correct visualization throughout the procedure. This minimally invasive spinal surgery is associated with radiation exposure for both patient and surgeon. In our center, we switched from using a C-arm to an O-arm image guidance system to perform balloon kyphoplasty. Our preliminary experience is reported in Acta Neurochirurgica, and the encouraging results led us to study this subject more extensively. This article presents our complete results. To the best of our knowledge, there is no comparable clinical series describing O-arm use in kyphoplasty procedures published in the literature.
  
  
  OBJECTIVE
  To report our complete results of using the O-arm guidance system to perform balloon kyphoplasty.
  
  
  METHODS
  We prospectively evaluated O-arm-guided kyphoplasty procedure in 54 consecutive patients and measured x-ray exposure and fluoroscopy time.
  
  
  RESULTS
  The mean surgical time for the procedure was 38 minutes with a mean fluoroscopy procedure time of 3.1 minutes. The mean fluoroscopy time by level was 2.5 minutes. Mean irradiation dose by procedure was 220 mGy and by level was 166 mGy. There was a significant reduction in fluoroscopy time and x-ray exposure from 5.1 minutes with classic C-arm use to 3.1 minutes when with O-arm use without additional time required for positioning the system.
  
  
  CONCLUSIONS
  With this new intraoperative system, the overall surgical and fluoroscopy times can be further reduced in the near future.
authors.affiliation: Department of Neurosurgery, Clinique Saint Joseph, 74 Rue de Hesbaye, Liège, Belgium. frederic.schils@chc.be
authors.forename: Frédéric
authors.initials: F
authors.lastname: Schils
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001843:Bone Cements / Q000627:therapeutic use; D002404:Catheterization; D005260:Female; D005471:Fluoroscopy; D050815:Fractures, Compression / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D058498:Kyphoplasty / Q000295:instrumentation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D011446:Prospective Studies; D011829:Radiation Dosage; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000628:therapy*; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D001843:Bone Cements